Error from rdflib for declaration of VANN

Question

Error from rdflib for declaration of VANN

rivettp opened this issue 3 years ago · comments

I'm using 3.0.1 of pylode and 4.0.6 of rdflib

Traceback (most recent call last):
File "/home/rivettp/.local/bin/pylode", line 5, in
from pylode.cli import main
File "/home/rivettp/.local/lib/python3.8/site-packages/pylode/init.py", line 1, in
from .utils import *
File "/home/rivettp/.local/lib/python3.8/site-packages/pylode/utils.py", line 32, in
from rdflib.namespace import (
ImportError: cannot import name 'VANN' from 'rdflib.namespace' (/home/rivettp/.local/lib/python3.8/site-packages/rdflib/namespace/init.py)

Nicholas Car · Answer 1 · Mon Jan 17 2022 13:54:50 GMT+0800 (China Standard Time)

You'll need to upgrade to rdflib >= 5.0.0 but best would be 6.1.1. I'm not really able to maintain compatibility with such ancient RDFlib releases (4.0.6 must be from > 5 years ago!)

Pete Rivett · Answer 2 · Mon Jan 17 2022 16:13:14 GMT+0800 (China Standard Time)

Apologies, I'm using rdflib 6.0.2, which is the latest that pip gives me for the version of python (3.8) included with my Ubuntu 20.0.4. And confirmed I'm getting the same error.

Nicholas Car · Answer 3 · Mon Jan 17 2022 17:43:51 GMT+0800 (China Standard Time)

Ah, ok, I'll have to look into this then... blast!

Nicholas Car · Answer 4 · Tue Jan 18 2022 06:53:30 GMT+0800 (China Standard Time)

Hmmm... this problem is tricky because I can't easily replicate it: the VANN namespace resolves just like all the others do in 6.0.2, see https://github.com/RDFLib/rdflib/tree/6.0.2/rdflib/namespace, so I don't yet know why you're seeing the error.

I'm going to have to try and run on Ubuntu and Python 3.8 exactly perhaps.

Charles Vardeman · Answer 5 · Sun Feb 27 2022 01:00:16 GMT+0800 (China Standard Time)

As an FYI to this issue, I had the same issue on MacOS with pylode installed in a pipx venv.

Traceback (most recent call last):
  File "/Users/cvardema/.local/bin/pylode", line 5, in <module>
    from pylode.cli import main
  File "/Users/cvardema/.local/pipx/venvs/pylode/lib/python3.10/site-packages/pylode/__init__.py", line 1, in <module>
    from .utils import *
  File "/Users/cvardema/.local/pipx/venvs/pylode/lib/python3.10/site-packages/pylode/utils.py", line 32, in <module>
    from rdflib.namespace import (
ImportError: cannot import name 'VANN' from 'rdflib.namespace' (/Users/cvardema/.local/pipx/venvs/pylode/lib/python3.10/site-packages/rdflib/namespace/__init__.py)

Python 3.10.2 (main, Feb  2 2022, 06:19:27) [Clang 13.0.0 (clang-1300.0.29.3)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import rdflib
RDFLib Version: 6.0.0

Uninstalling the pipx venv and reinstalling forced an upgrade of rdflib to 6.1.1 that seems to have solved the issue. Anyone running into this issue should probably first try to get to rdflib up to 6.1.1.